Dinonylnaphthalenesulfonic Acid from Germany
Dinonylnaphthalenesulfonic acid (DNNSA) features two nonyl alkyl chains on sulfonated naphthalene, qualifying as alkylated sulfonated hydrocarbon derivative under HTS 2904.99.50.00. Widely used in alkylation catalysts and metal extraction.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Provide alkylation pattern analysis to confirm hydrocarbon derivative status vs synthetic polymers
• Biodegradation data may be required under EPA Vessel General Permit for ballast water
• Segregate from strong oxidizers; test container compatibility with long-chain alkyl structure